28380965

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 10326235

約数列:

[1, 5, 19, 23, 31, 95, 115, 155, 419, 437, 589, 713, 2095, 2185, 2945, 3565, 7961, 9637, 12989, 13547, 39805, 48185, 64945, 67735, 183103, 246791, 298747, 915515, 1233955, 1493735, 5676193, 28380965]

約数ペア:

[(1, 28380965), (5, 5676193), (19, 1493735), (23, 1233955), (31, 915515), (95, 298747), (115, 246791), (155, 183103), (419, 67735), (437, 64945), (589, 48185), (713, 39805), (2095, 13547), (2185, 12989), (2945, 9637), (3565, 7961)]